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  1. AU="Lydon, Myra"
  2. AU="Jain, Nibha"
  3. AU="David A Schwartz"
  4. AU="Swart, Jonathan"
  5. AU="Karol, Agnieszka"
  6. AU="Reilly, Brittni"
  7. AU="Arfaatabar, Maryam"
  8. AU="Kumar Pandey, Anand"

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  1. Artikel ; Online: Identification of Bridge Key Performance Indicators Using Survival Analysis for Future Network-Wide Structural Health Monitoring.

    Stevens, Nicola-Ann / Lydon, Myra / Marshall, Adele H / Taylor, Su

    Sensors (Basel, Switzerland)

    2020  Band 20, Heft 23

    Abstract: Machine learning and statistical approaches have transformed the management of infrastructure systems such as water, energy and modern transport networks. Artificial Intelligence-based solutions allow asset owners to predict future performance and ... ...

    Abstract Machine learning and statistical approaches have transformed the management of infrastructure systems such as water, energy and modern transport networks. Artificial Intelligence-based solutions allow asset owners to predict future performance and optimize maintenance routines through the use of historic performance and real-time sensor data. The industrial adoption of such methods has been limited in the management of bridges within aging transport networks. Predictive maintenance at bridge network level is particularly complex due to the considerable level of heterogeneity encompassed across various bridge types and functions. This paper reviews some of the main approaches in bridge predictive maintenance modeling and outlines the challenges in their adaptation to the future network-wide management of bridges. Survival analysis techniques have been successfully applied to predict outcomes from a homogenous data set, such as bridge deck condition. This paper considers the complexities of European road networks in terms of bridge type, function and age to present a novel application of survival analysis based on sparse data obtained from visual inspections. This research is focused on analyzing existing inspection information to establish data foundations, which will pave the way for big data utilization, and inform on key performance indicators for future network-wide structural health monitoring.
    Sprache Englisch
    Erscheinungsdatum 2020-12-02
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s20236894
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: Bridge Damage Detection Approach Using a Roving Camera Technique.

    Lydon, Darragh / Lydon, Myra / Kromanis, Rolands / Dong, Chuan-Zhi / Catbas, Necati / Taylor, Su

    Sensors (Basel, Switzerland)

    2021  Band 21, Heft 4

    Abstract: Increasing extreme climate events, intensifying traffic patterns and long-term underinvestment have led to the escalated deterioration of bridges within our road and rail transport networks. Structural Health Monitoring (SHM) systems provide a means of ... ...

    Abstract Increasing extreme climate events, intensifying traffic patterns and long-term underinvestment have led to the escalated deterioration of bridges within our road and rail transport networks. Structural Health Monitoring (SHM) systems provide a means of objectively capturing and quantifying deterioration under operational conditions. Computer vision technology has gained considerable attention in the field of SHM due to its ability to obtain displacement data using non-contact methods at long distances. Additionally, it provides a low cost, rapid instrumentation solution with low interference to the normal operation of structures. However, even in the case of a medium span bridge, the need for many cameras to capture the global response can be cost-prohibitive. This research proposes a roving camera technique to capture a complete derivation of the response of a laboratory model bridge under live loading, in order to identify bridge damage. Displacement is identified as a suitable damage indicator, and two methods are used to assess the magnitude of the change in global displacement under changing boundary conditions in the laboratory bridge model. From this study, it is established that either approach could detect damage in the simulation model, providing an SHM solution that negates the requirement for complex sensor installations.
    Sprache Englisch
    Erscheinungsdatum 2021-02-10
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s21041246
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Understanding the barriers to NET-ZERO transport for rural roads: a Northern Ireland case study.

    Lydon, Myra / Lydon, Darragh / Stevens, Nicola-Ann / Taylor, Su / Early, Juliana / Marshall, Adele

    Journal of infrastructure preservation and resilience

    2021  Band 2, Heft 1, Seite(n) 24

    Abstract: Introduction: Climate-related disasters have cost the world over £450 billion over the last 3 years. In the race to mitigate these effects, the UK government has committed to net-zero emissions by 2050. Transport provides the largest single sector ... ...

    Abstract Introduction: Climate-related disasters have cost the world over £450 billion over the last 3 years. In the race to mitigate these effects, the UK government has committed to net-zero emissions by 2050. Transport provides the largest single sector contribution to CO
    Case description: In this research a survey of road asset owners, managers, academics, consultants, public transport providers was undertaken to seek to understand the current barriers to adapting a dispersed rural road network in Northern Ireland for net-zero transport. The survey data was collected though an online form with a combination of multiple choice and open ended questions. Thematic analysis was used to code and analyse the data collected which enabled a discussion around the key expert opinions gathered.
    Discussion and evaluation: The paper presents details of the current road network in Northern Ireland and highlights some of the issues faced by asset owners. The survey questions were developed though engagement with transport professionals in Northern Ireland and focus predominantly on road use rather than the impact of current land management practices or environmental conditions such as flood risk. The response highlights a clear enthusiasm for change in the operation of the public road network which is hindered by a lack of government strategy and limited public consultation.
    Conclusions: The high response rate (41%) for the survey highlights the interest of those in the transport sector to engage in activities which can support a better understanding of how road networks contribute to CO
    Sprache Englisch
    Erscheinungsdatum 2021-09-13
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 2662-2521
    ISSN (online) 2662-2521
    DOI 10.1186/s43065-021-00038-x
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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